问题 更新时间2023/4/3 12:59:00 He tried to stand on his hands for five minutes, _______ is rather a difficult thing to do.(本题3.0分) A、 that B、 which C、 whose D、 / 答案 登录 注册 标准答案:B 出自:青书学堂 >> 内蒙古农业大学-大学英语4